Sample efficient approaches in time-resolved X-ray serial crystallography and complementary X-ray emission...

Area of Science:

• Dynamic structural biology
• Biophysics
• Biochemistry

Background:

• Time-resolved experiments in structural biology are crucial for understanding biological events at atomic resolution.
• X-ray Free Electron Lasers (XFELs) and advanced synchrotrons have propelled serial crystallography for these studies.
• Challenges remain in protein sample requirements and interpreting data, especially for metalloproteins.

Purpose of the Study:

• To highlight tape-drive sample delivery systems for time-resolved serial crystallography.
• To demonstrate the integration of X-ray diffraction (XRD) and X-ray emission spectroscopy (XES) for enhanced data acquisition.
• To showcase advancements in instrumentation for efficient microcrystal slurry utilization.

Main Methods:

• Utilizing tape-drive systems with X-ray transparent conveyor belts for microcrystal delivery.
• Synchronizing on-demand ejectors with X-ray pulses for precise sample exposure.
• Implementing complementary spectroscopic equipment, specifically XES, alongside XRD.

Main Results:

• Tape-drive systems significantly reduce the amount of microcrystal slurry required for experiments.
• The integration of XRD and XES enables simultaneous data collection, providing complementary information.
• This combined approach facilitates the study of dynamic processes in biological samples, including metalloproteins.

Conclusions:

• Tape-drive systems are effective for efficient sample delivery in time-resolved serial crystallography.
• The combination of XRD and XES is a powerful tool for investigating the functional mechanisms of biomolecules.
• These advancements enable deeper insights into dynamic biological events at XFELs and synchrotrons.